Periodic Inspection And Maintenance Procedure; Check Before Starting - Yanmar 3YM30 Sevice Manual

2. Inspection and adjustment

2.2 Periodic inspection and maintenance procedure

2.2.1 Check before starting

Be sure to check the following points before starting an engine every day.
No.
(1) Visual inspection of engine outside
(2) Check the fuel level, and refill
(3) Check the lube oil level (Crankcase/Marine gear)
(4) Seawater outlet
(5) Check cooling water level
(6) Check the alarm lamps & devices
(7) Check the leakage of water, lube oil and fuel
(8) Check/adjust the remote control operation
(1) Visual inspection of engine outside
If any problem is found, do not use before the engine repairs have been completed.
• Oil leak from the lubrication system
• Fuel leak from the fuel system
• Cooling water leak from the cooling water system
• Damaged parts
• Loosened or lost bolts
• Fuel, coolant tank rubber hoses, V belt cracked, loosened clamp
(2) Check the fuel level, and refill
Check the remaining fuel oil level in the fuel tank and refill the recommended fuel if necessary.
(3) Check the lube oil level (Crankcase/Marine
gear)
1) Checking engine lube oil level
a) Check the lube oil level of a engine with a
dipstick. Insert the dipstick fully and check the oil
level. The oil shall not be contaminated heavily
and have appropriate viscosity. No cooling water
or diesel fuel shall be mixed
Standard
The level shall be between the upper and lower limit lines on the dipstick.
Model
3YM30 with KM2P-1
3YM20 with KM2P-1
b) If the remaining engine oil level is low, fill the oil pan with the specified engine oil to the specified
level through the filler port.
[NOTICE]
The engine oil should not be overfilled to exceed the upper limit line. If engine oil is overfilled, the
engine may intake the engine oil in the combustion chamber during the operation, and white smoke,
oil hummer or urgent rotation may occur, because the blowby gas is reduced in the suction air flow.
Inspection Item
Unit : liter (quart)
Engine oil capacity
at rake angle 8 degree
0
Full:2.8 /
-0.2
0
Full:2.7 /
-0.2
(3.0)
(2.9)
17
Filler port
Dipstick
Upper limit
Lower limit